The Length of a Certain Wire Is Halved While the Radius

question 2

Multiple Choice

The length of a certain wire is halved while the radius is doubled. What is the change in the resistance of this wire?

• A) It stays the same.
• B) It is reduced by a factor of 2.
• C) It is reduced by a factor of 4.
• D) It is reduced by a factor of 8.
• E) It is quadrupled.

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